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11th Computer Science Weekly Test -3 ( Number Systems )

MABS Institution

11th Computer Science Weekly Test -3 ( Number Systems )-Aug 2020

Time : 1.00 Hours

Part - A

Multiple Choice Question - Answer All Question

Which complement performs the logical negation on each individual bit?

Signed
Unsigned
2's
1's

Which one of the following company have formulated EBCDIC?

Microsoft
1 BM
Sun
Apple

Match the following.

1. 1 GB 2⁵⁰

2. 1 PB 2⁶⁰

3. 1 EB 2⁸⁰

4. 1 YB 2³⁰

4 1 2 3
1 2 3 4
4 3 2 1
4 2 1 3

Which is considered as the basic unit of measuring the memory size in the computer?

Bit
Byte
Nibble
Word

Which of the programs used Unicode?

C
C++
Java
None of these

Which is an elementary building block of the digital circuit?

Gate
Digital gate
Logic gate
Physical gate

Bit means ______

nibble
byte
word length
binary digit

A Latin prefix Deci means.........

2
8
16
10

Which of the following is the idea behind positional numbering systems?

Absolute Value
Place Volume
Radix
All of these

The base value of a number is also known as.....

length
radix
data
Position

Find the wrong pair from the following.

Null element : A + 1 = 1
Involution : \(\overset { = }{ A } =A\)
Demorgan's : \(\bar { A+B } =\bar { A } .\bar { B } \)
Commutative : A + B = B . A

The ASCII value of put zero 0 is....

48
58
65
30

The______operator is defined in booolgan algebra by the use of the dot (.) operator.

AND
OR
NOT
NAND

How many parameters can be considered to know the magnitude of the number?

2
4
3
5

Which amongst this is not an Octal number?

645
234
876
123

The decimal value of 1010.01₂ is

10.5
10.25
10.05
10.025

Pick the odd one.

BCD
ENIAC
ASCII
EBCDIC

In a computer, a data is converted into

ASCII form
BCD form
Binary form
Octal form

The variables which can store the truth values are called as _______

logical variable
binary valued variable
boolean variables
all of these

Octal number system uses digits________

7
5
8
10

How the message represented in computers?

Information
data
Knowledge
all of these

Data means..............

a set of values
a set of information
a set of records
a set of files

2^{\(\wedge \)}50 is referred as

kilo
Tera
Peta
Zetta

The decimal value of Binary number 10 is ______

101010
2
100
A

The most commonly used number system is......

Binary
Hexademical
Decimal
Octal

In binary numbers, the signed negative number has a prefix?

-
0
1
2

How many ways are there to represent signed binary number?

2
4
1
6

Expansion for ASCII

American School Code for Information Interchange
American Standard Code for Information Interchange
All Standard Code for Information Interchange
American Society Code for Information Interchange

1's complement of 1001₂ is

1000₂
0111₂
0110₂
1010₂

What is the ASCII value for blank space?

8
2
18
32

Which symbol is used to in OR operator?

-
.
+
*

How many characters can be handled in Binary Coded Decimal System?

64
255
256
128

Expand BIT.

Basic Input Term
Binary Input Term
Biliary Digit
Binary Inverse Digit

Which is used to measure the number of bits in each word?

Word length
length
Size
word size

A word can have a length of..........

2,5,10 bits
15,25,50 bits
16,32,64 bits
64,128,255 bits

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